how to enable cors options in asp.net web apis.?

Question

How do I enable the CORS option in asp.net WebApi? I installed the package Microsoft.AspNet.WebApi.Cors from nuget for CORS support. However, I am getting an error stating that IAppBuilder does not contain definition for app.useCors?

Have you tried everything in this answer? stackoverflow.com/questions/20079813/… — awh112
– awh112, Commented Feb 1, 2017 at 19:00
yes but app.UseCors(Microsoft.Owin.Cors.CorsOptions.AllowAll); says IaapBuilder could not found definition for UseCors — Ali Nafees
– Ali Nafees, Commented Feb 1, 2017 at 19:17
Have you installed the Microsoft.AspNet.WebApi.OwinSelfHost and Microsoft.Owin.Cors NuGet packages? — awh112
– awh112, Commented Feb 1, 2017 at 19:31

awh112 · Accepted Answer · 2019-09-03 14:40:09Z

9

Make sure you have installed the Microsoft.AspNet.WebApi.OwinSelfHost and Microsoft.Owin.Cors NuGet packages.

edited Sep 3, 2019 at 14:40

answered Feb 1, 2017 at 20:05

awh112

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